Ring binder



FIG. 1 is a perspective view of a ring binder;

FIG. 2 is a top view of the ring binder in closed position;

FIG. 3 is a side view of the ring binder;

FIG. 4 is an end view;

FIG. 5 is an end view of the end not shown in FIG. 4;

FIG. 6 is a side view of the side not shown in FIG. 3;

FIG. 7 is a bottom view of the ring binder;

FIG. 8 is a perspective view of the ring binder in open position; and,

FIG. 9 is a top view of the ring binder in open position. 

The ornamental design for a ring binder, as shown and described. 